73241543 has 4 divisors (see below), whose sum is σ = 73322160. Its totient is φ = 73160928.

The previous prime is 73241459. The next prime is 73241563. The reversal of 73241543 is 34514237.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34514237 = 23 ⋅1500619.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73241543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73241563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38930 + ... + 40767.

It is an arithmetic number, because the mean of its divisors is an integer number (18330540).

Almost surely, 2^73241543 is an apocalyptic number.

73241543 is a deficient number, since it is larger than the sum of its proper divisors (80617).

73241543 is an equidigital number, since it uses as much as digits as its factorization.

73241543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80616.

The product of its digits is 10080, while the sum is 29.

The square root of 73241543 is about 8558.1273068353. The cubic root of 73241543 is about 418.3943665635.

The spelling of 73241543 in words is "seventy-three million, two hundred forty-one thousand, five hundred forty-three".